Blueprinting a rifle action involves truing it up and tightening its tolerances to match those specified in its original design plans or, to use an old term, its blueprint. Brownells Gun Tech™ Caleb Savant gives us an overview of blueprinting an action using a Remington 700 as an example, but these principles apply to almost any rifle. The goal of blueprinting is to maximize the rifle's accuracy by making everything perfectly concentric to the bore itself. This involves truing up the shoulder and threads on the barrel to match the shoulder and threads of the receiver. Ditto for the front and rear surfaces of the recoil lug because an out-of-spec recoil lug will nullify your work on the receiver and barrel! The bolt lugs are trued to match the shoulder inside the receiver. How do you know that's necessary? Hint: is there equal wear on the contact surfaces of the bolt lugs? Factory rifles are often quite accurate right out of the box, but blueprinting them makes them MORE accurate. The labor involved in blueprinting is actually what you're paying for when you buy a high-dollar precision rifle action based on a commercial action. Would you like to see a demonstration of the actual blueprinting process from start to finish? Leave us a comment below...